The user of Shadow Force will vanish instantly on the first turn,
disappearing from view and becoming invulnerable to most attacks. On
the second turn, Shadow Force deals damage and can hit Pokemon using
Protect or Detect. It also removes their effect for the rest of the
turn (in double and triple battles). While disappeared, the Pokemon can only be hit by moves from No Guard. Pokemon, or any move following an identify move.
If the user is holding a Power Herb, Shadow Force executes in one
turn.